01
Peak-shaving
Discharge into demand peaks to cut contract-demand penalties and maximum-demand charges.
PRODUCT · BESS · EC SERIES
Storage you can order by the megawatt-hour.
The EC Series is Biosel's productized LFP battery energy storage line — four standardized blocks from 250 kWh to 5 MWh. Off-the-shelf where most EPCs custom-build. Turns solar into a dispatchable asset for peak-shaving, firming, arbitrage, and backup.
Usable energy
250kWh
Power rating
125kW
Form factor
Cabinet
Footprint mass
3.2t
EC-250 · ORTHO
1200 × 1200 × 2200 mm
01 / SPECIFICATION
EC-250 technical data
Every block shares the same LFP chemistry, certifications, and controls. Energy, power, and footprint scale with the model. Full datasheet available on request.
02 / GENERAL ARRANGEMENT
Dimensioned drawings
Front and side elevations, dimensions in millimetres. A manufacturing-ready design intent — issued as a stamped GA drawing pack with foundation loading, cable-entry schedule, and clearance envelope on order.
FRONT ELEVATION
SIDE ELEVATION
Drawings indicative · not to scale on screen · maintain ≥ 1000 mm service clearance front & rear · ≥ 800 mm sides.
03 / BILL OF MATERIALS
What's inside the block
Top-level BOM for EC-250. Quantities scale with capacity. Cell, BMS, and PCS vendors are dual-sourced and named in the issued pack.
| Subassembly | Component | Specification | Qty |
|---|
04 / APPLICATIONS
Four ways the block pays back
02
Firming
Smooth solar ramp and intermittency so the plant meets a contracted, dispatchable profile.
03
Arbitrage
Charge on cheap off-peak or surplus solar, discharge into high-tariff windows. ToD spread capture.
04
Backup
Black-start and ride-through for critical loads — seamless transfer under 20 ms with the hybrid PCS.
CERTIFICATIONS
IEC 62619UL 9540AIS 16270
IEC 61000 EMCIP55 enclosureIEC 60529
MANUFACTURING PACK
Take the EC-Series to fabrication.
Request the full pack: stamped GA drawings, foundation and loading schedule, single-line diagram, cell and PCS datasheets, FAT protocol, and a per-MWh quotation. We support build-to-print or supply-and-commission.